Classic tower defense game inspired by Warcraft 3 Hero/TD games.
Wave based tower defense where you can unlock better versions after waves and fortify them during.
One twist here is that you can buy proficiency upgrades to be more effective against specific monsters.
During the hard waves you can cast spells to boost your towers, heroes or inflict direct damage.
Completing levels can drop items that passively boost your forces.

Time to defend your castle!